Re: Min and Max
| От | Dennis Björklund |
|---|---|
| Тема | Re: Min and Max |
| Дата | |
| Msg-id | Pine.LNX.4.44.0212021939410.9578-100000@zigo.dhs.org обсуждение исходный текст |
| Ответ на | Min and Max (smoshiro@hotmail.com (Sergio Oshiro)) |
| Список | pgsql-sql |
On 29 Nov 2002, Sergio Oshiro wrote: > How can I get the rows of the children name and its "father" such that > they have the min child_ages? > > -- the following does not return the child_name... > select id_father, min(child_age) from children group by id_father; > select id_father, max(child_age) from children group by id_father; You could join one of the above with the table itself and get the result. Something like select * from ( select id_father, min(child_age) from children group by id_father) as r, childrenwherechildren.id_father = r.id_father and children.min = r.min; -- /Dennis
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